How big/relevant is the adblock user market segment?

Also, flattr and other micropayment sites could/would work. Just as patreon and other subscription methods.

After all paid-via-unskippable-ads is the inverse of consumed-without-payment. Both are the extremes of the spectrum and the majority of users probably would stop visiting/consuming if they were forced to look at the ads for a significant amount of time.

I mean TV channels probably spent hundreds of millions on trying to maximize ad time while keeping viewers. (And now YouTube too.)

But of course there will always be a segment that will be very bothered by ads. (Hence the success of Netflix.)